Device for pulling-up rod-lines.



E. REED.

DEVICE FOR PULLING UP ROD LINES.

APPLICATION FILED JUNE 10, 1918.

Patented Jan. 14, 1919.

EDWARD REED, 0F BASIN, WYOMING.

DEVICE FOR PULLING-UP BOD-LINES.

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Specification of Letters Patent.

Patented as. re, ieia.

Application filed June 10, 1918. Serial No. 239,128.

To all whom it may concern:

Be it known that T, EDWARD REED, a citizen of the United States, residing at Basin, in the county of Bighorn and State of "Wyoming, have invented certain new and useful Improvements in Devices for Pulling-Up Rod-Lines, of which the following is a specification.

My invention relates to a device for use in connection with the pumping apparatus of oil wells, whereby the eccentric power used for pumping the wells may also be used for pulling up the rod lines which normally form the operative connection between the pump jacks and the eccentric from which they are operated at a central power station, from which station, a number of wells located at diflerent distances therefrom are pumped.

The rod lines extending from the power station to the difl'erent wells are supported on the tops of short postsa row of these posts extending from the central station to each well.

At the inner end of each rod line is a throw-off hook for connecting the rod line with the rod of the operating eccentric.

A great many times it becomes necessary, for various reasons, to use the power at the central station for pulling up the rod lines to efiect a connection, by means of their throw-off hooks, with the eccentric rods. For instance, when hooking on a new rod line, the difierent sections are connected together beginning at the well, and are then pulled up by using the power. Sometimes the line breaks usually not far from the power end of the line. And sometimes it is necessary to replace a badly worn section with a new section, etc., etc. Whenever the line is disconnected from the eccentric rod, whatever the cause, the line sags between the supporting posts, and thus shortens the line more or lessaccording to the distance of the well from the central station.

In addition to this, the sucker rod of the pump and the working valve carried on the lower end thereof, together with the column of oil resting on this valve are all supported in the barrel of the pump by the rod line when it is connected up with the operating eccentric, and all of this weight tends to hold the rod line taut and pulls upon it just as a spring would do. Whenever the rod line is disconnected from the eccentric rod, the weight imposed upon the sucker rod of the pump, as just shown, willcause it to move downwardly till the working valve rests on the standing valve, and this downward movement of the sucker rod will pull the rod line in a direction away from the eccentric and toward the well, thus combining with the sagging of the rod line on the posts to increase the gap between the throw-0E hook and the eccentric rod, the result of which is that the throw-ofi hook is sometimes six or eight feet away from the eccentric rod.

At present, the utilization of the eccentric power for pulling up these rod lines is effected by clumsy means, slow in operation, and dangerous to the extent that it often takes off the finger of an operator.

The object of my invention is to provide convenient means whereby the power of the eccentric may be utilized to pull up a rod line quickly and easily and without danger to the operator, so that the rod line may be either connected with the eccentric rod for pumping the well, or with the hook-off rod when it is not desired to pump the well.

The invention consists in certain novel features of construction and arrangement of parts, as will be hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a diagrammatic view showing my device operatively connected with an eccentric and a rod line, for pulling up the latter. Fig. 2 is a side elevation of one of the blocks and pulleys used with my device; and, Fig. 3 is a plan view, partly in section, of the same.

In the embodiment of my invention herein shown I prouide two blocks, 1 and 1, both alike. These blocks areprovided with pulleys 2 and 3 respectively, and the pulleys have peripheral grooves a for the reception ofchains 5 and 6. Each block is provided on opposite sides with slots 7 which open toward the pulley and are spaced a slight distance therefrom to cause the sides of the slots to form shoulders 8 approximately concentric with the pulley. The shoulders 8 of each pulley, being slightly spaced from the periphery of the pulley, permit the chain links, when held in engagement with the side of the pulley facing said shoulders, to

freely pass the shoulders, as shown in Fig.

8. But the alternate links of the chain which are received into the groove of the pulley may be drawn out into one of the slots 7 by movlng the end of the chain adjacent said shoulder outwardly. This will cause the links of the chain which are not received into the groove ofthe' pulley to en'- gage the shoulders 8 and lock thechain to the block when a reverse movement of the chain is attempted.

At the head of each block is a swivel' hook 9.

The chains are provided at one end with rings or enlarged links 10 and at the other end with hooks 11.

In Fig. l of the drawings, the numeral 12 indicates the usual eccentric used at a central power station for operating the jacks of a number of oil wells; and the numeral 13 indicates the eccentric rod having a loop or clamp 14 at its outer end. The numeral 15 indicates the throw-ofi hook which is carried on the end of the rod-line 16. This hook 15 is provided with an upper hook or bill 15 for engagement with the loop 14 of the eccentric rod, and'also' with a lower hook or bill 15". The swivel hook 9 of the block 1 may be attached either to the loop or clamp 14 at the outer end of the cecentric rod, or to the loop or clamp 17 at the outer end of the usual hoolcofi rod 18, which is anchored in the concrete foundation 19 of the eccentric power.

When it is desired to pullup a rod line for any purpose, as, for instance, after repairs have been made, or when it is desired to hook on a new rod line, my" device is usu ally employed as indicated in Fig. 1, with the block 1 and the chain 5 used to fill up the gap and thus'make connection between the outer end of the eccentric rod 13 and the upper hook or'bill 15 of the throw-off hook; and with the block 1 and the chain 6 likewise employed to make connection between the loop 17 and the outer end of the throwofl' rod and the lower hook or bill 15 of the throw-off hook.

If the blocks are connected by means of their swivel hooks with the rods 13 and 18, then the chains are connected by means of their rings 10 with the throw-off hook 15; but if it'is desired to connect the chains to the rods 13 and 18, this may conveniently e done by means of the hooks 11 of the chains, and then the swivel hooks of the blocks will connect with the upper'and lower bills ofthe throw-0E hook.

As each pulley block has the slots 7 and shoulders 8 at both sides, the chains may be passed around either the near or the far side of the pulleys, as best suits the convenience-of the operator in each individual case where the device isused.

In the operation of the device, when the eccentric travels inwardly, the block 1 with its: cooperating chain 5 draws the rod line up toward'the eccentric, and slackens-the chain 6 which passes over the block 1*, and this slack may be taken: up manually by a proper pull on said chain 6; then the free end of this chain is moved outwardly from the pulley to bring the chain into locking engagement with the shoulders 8 of the block 1 to hold the rod line at the point to which it has been drawn up. On the next outward stroke of the eccentric, the chain 5 which cooperates with the block 1 becomes slack, which slack may also be taken up and the chain correspondingly secured against backward movement. In this way the rod line is pulled up step by step till the bill 15" of the throw-off hook can be hooked into the loop 14 of the eccentric rod, if it is desired to pump the well; or the bill 15" can be hooked into the loop 17 of the hook-oil rod and thus secure the pulled-up rod line in place, and permit the eccentric rod to slide idly back and forth on the frame provided for that purpose without operating the I'Oll line and pump jack to which the rod line is connected.

lVith my-arrangement all this is easily and safely accomplished with the eccentric running at full speed of from fourteen to twenty strokes 'per minute pumping the other wells with whlch it is connected.

lVith my arrangement the links of the chains are usually made short so that the full stroke of the eccentric can be utilized each time in pulling up the rod line.

The swivel hooks of the blocks are so arranged that the pull upon them is substantially in a longitudinal direction, thus avoiding side strain on said blocks.

From the foregoing it will be seen that my arrangement is the practical equivalent of two members having tongue and buckle 0r pawl and ratchet connection, which easily permits movement of the members upon one another in one direction, but looks them against movement upon one another in the opposite direction.

Having thus described the principles of my invention and shown means for making 0 a practical application of the same, I yet do not wish to be limited to the exact showing made, but desire protection on all that comes within the spirit and scope of my invention.

What I claim as new and desire to secure by Letters Patent is';

1. In combination with pump jack operating means including an eccentric and an cecentric rod connected thereto; a hookofl 1530 rod connected to a fixed point; and a throw- Off hook; a pair of chains; and means cooperating therewith lor forming a connection between the throw-off hook and the eccentric rod and between the throw-off 135 hook and the hook-off rod, said cooperating means in each case being arranged for move movement thereon in the direction opposite to that elected by the operator.

2. In combination with pump jack operating means including an eccentric and an eccentric rod connected thereto; a hook-ofi' rod connected to a fixed point; a throw-off hook; a pair of blocks and pulleys; and a pair of chains cooperating with said blocks and pulleys to form connections between the throw-oil hook and the eccentric rod and between the throw-off hook and the hookoff rod, said blocks having locking means for locking the chains against backward movement on said pulleys.

3. In a device of the character described for use with pump jack operating means, a pair of cooperating members connecting the throw-oil hook to the eccentric rod, and another pair connecting the throw-off hook to the hook-oil rod, the units of each pairv of cooperating members being arranged for movement upon one another in one direction and for locking against movement upon one another in the opposite direction.

4:. In combination with pump jack operating means including an eccentric and an eccentric rod connected thereto; a hook-01f rod connected to a fixed point; a throw-0E hook; a pair of blocks connected one to the eccentric rod and the other to the hook-off rod, and each having a pulley and also having chain locking means; and a pair of chains each having one end connected to the throw-off hook, said chains each engaging one of the pulleys and being each adapted to be manually engaged with the locking means of its block by a movement of: the free end of the chain in the direction away from the pulley.

5. In combination with pump jack operating means including an eccentric and an eccentric rod connected thereto; a hook-01f rod connected to a fixed point; a throw-ofi hook; a pair of blocks respectively detachably connected to the eccentric rod and to the hook-off rod, each of said blocks having a pulley mounted therein and also having chain locking means; and a pair of chains connected detachably to said throw-off hook independently of each other, said chains engaging the respective pulleys and each being adapted to be manually engaged with the locking means of its block when tension is placed on the chain.

In testimony whereof I afliX my signature.

EDWARD REED.

topics of this patent may be obtained for five oentseach, by addressing the Commissioner of Patents, Washington, D. G. 

